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The utilization of rock phosphate (natural defluorinated calcium phosphate or NDCP) in laying hens diet to replace dicalcium phosphate Sinurat, A.P; Dharsana, R; Pasaribu, T; Panggabean, T; Habiebie, A
Indonesian Journal of Animal and Veterinary Sciences Vol 2, No 2 (1996)
Publisher : Indonesian Animal Sciences Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (801.12 KB) | DOI: 10.14334/jitv.v2i2.54

Abstract

An experimentwas conducted to study the utilization of local rock phosphate or natural defluorinated calcium phosphate (NDCP) as phosphorus source for layer chickens by using the imported dicalcium phosphate (DCP) as a reference. Eight experimental diets consisted of 2 source of phosphorus (DCP and NDCP) and 4 dietary total P levels (0.4, 0.5, 0.6 and 0.7%) were formulated. Each diet was fed to 24 pullets (6 replicates with 4 birds each) from 20 weeks of age to 14 weeks of egg production. Observations were made on feed consumption, egg production, egg weight, mortality, egg quality, Ca and P retention and ash content of tibial bones . Results showed no significant effect of different source and level of  phosphorus tested on egg production (% HD), feed consumption, egg weight and mortality rates . Egg shell thickness was depressed in NDCP diet as compared with DCP, however this only occurred at firstmonth of production. It is concluded that the NDCP can be used in layers diet to replace DCP as phosphorus source. The relative biological value of phosphorus inNDCP is 96% for layers.   Keywords: Rock phosphate, NDCP, layers, phosphorous
Availability of phosphorus in defluorinated rock phosphate and bone meal for broiler chickens as assessed by a slope ratio assay Ketaren, P.P; Silalahi, M; Panggabean, T; Aritondang, D
Indonesian Journal of Animal and Veterinary Sciences Vol 3, No 2 (1998)
Publisher : Indonesian Animal Sciences Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (493.391 KB) | DOI: 10.14334/jitv.v3i2.101

Abstract

An experiment was conducted to determine the availability of P in defluorinated rock phosphate (DRP) and bone meal (TT) using a slope ratio assay (SRA) technique . Ten different diets were fed to 300 day-old broiler chicks for three weeks. Basal diet (RB) was formulated to contain 0.38% total P. DRP, TT and dicalcium phosphate (DCP) diets were each containing three different levels of total P: 0.45, 0.52 and 0.59%: At the end of the experiment, tibia bones were collected for ash determination. The availability of P was determined by SRA using tibia bone ash as the main parameter. The result indicated that the availability ofP in the DRP and TT were 83 .6 and 91 .3%, respectively .   Key words : Phosphorus availability, slope ratio assay, broiler
The utilization of rock phosphate (natural defluorinated calcium phosphate or NDCP) in laying hens diet to replace dicalcium phosphate Sinurat, A.P; Dharsana, R; Pasaribu, T; Panggabean, T; Habiebie, A
Indonesian Journal of Animal and Veterinary Sciences Vol 2, No 2 (1996)
Publisher : Indonesian Animal Sciences Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (53.569 KB) | DOI: 10.14334/jitv.v2i2.53

Abstract

An experimentwas conducted to study the utilization of local rock phosphate or natural defluorinated calcium phosphate (NDCP) as phosphorus source for layer chickens by using the imported dicalcium phosphate (DCP) as a reference. Eight experimental diets consisted of 2 source of phosphorus (DCP and NDCP) and 4 dietary total P levels (0.4, 0.5, 0.6 and 0.7%) were formulated. Each diet was fed to 24 pullets (6 replicates with 4 birds each) from 20 weeks of age to 14 weeks of egg production. Observations were made on feed consumption, egg production, egg weight, mortality, egg quality, Ca and P retention and ash content of tibial bones . Results showed no significant effect of different source and level of phosphorus tested on egg production (% HD), feed consumption, egg weight and mortality rates . Egg shell thickness was depressed in NDCP diet as compared with DCP, however this only occurred at firstmonth of production. It is concluded that the NDCP can be used in layers diet to replace DCP as phosphorus source. The relative biological value of phosphorus inNDCP is 96% for layers. Keywords: Rock phosphate, NDCP, layers, phosphorous (NDCP) as phosphorus source for layer chickens by using the imported dicalcium phosphate (DCP) as a reference. Eight experimental diets consisted of 2 source of phosphorus (DCP and NDCP) and 4 dietary total P levels (0.4, 0.5, 0.6 and 0.7%) were formulated. Each diet was fed to 24 pullets (6 replicates with 4 birds each) from 20 weeks of age to 14 weeks of egg production. Observations were made on feed consumption, egg production, egg weight, mortality, egg quality, Ca and P retention and ash content of tibial bones . Results showed no significant effect of different source and level of phosphorus tested on egg production (% HD), feed consumption, egg weight and mortality rates . Egg shell thickness was depressed in NDCP diet as compared with DCP, however this only occurred at firstmonth of production. It is concluded that the NDCP can be used in layers diet to replace DCP as phosphorus source. The relative biological value of phosphorus inNDCP is 96% for layers. Keywords: Rock phosphate, NDCP, layers, phosphorous
The utilization of rock phosphate (natural defluorinated calcium phosphate or NDCP) in laying hens diet to replace dicalcium phosphate A.P Sinurat; R Dharsana; T Pasaribu; T Panggabean; A Habiebie
Jurnal Ilmu Ternak dan Veteriner Vol 2, No 2 (1996)
Publisher : Indonesian Center for Animal Research and Development (ICARD)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (801.12 KB) | DOI: 10.14334/jitv.v2i2.54

Abstract

An experimentwas conducted to study the utilization of local rock phosphate or natural defluorinated calcium phosphate (NDCP) as phosphorus source for layer chickens by using the imported dicalcium phosphate (DCP) as a reference. Eight experimental diets consisted of 2 source of phosphorus (DCP and NDCP) and 4 dietary total P levels (0.4, 0.5, 0.6 and 0.7%) were formulated. Each diet was fed to 24 pullets (6 replicates with 4 birds each) from 20 weeks of age to 14 weeks of egg production. Observations were made on feed consumption, egg production, egg weight, mortality, egg quality, Ca and P retention and ash content of tibial bones . Results showed no significant effect of different source and level of  phosphorus tested on egg production (% HD), feed consumption, egg weight and mortality rates . Egg shell thickness was depressed in NDCP diet as compared with DCP, however this only occurred at firstmonth of production. It is concluded that the NDCP can be used in layers diet to replace DCP as phosphorus source. The relative biological value of phosphorus inNDCP is 96% for layers.   Keywords: Rock phosphate, NDCP, layers, phosphorous
Availability of phosphorus in defluorinated rock phosphate and bone meal for broiler chickens as assessed by a slope ratio assay P.P Ketaren; M Silalahi; T Panggabean; D Aritondang
Jurnal Ilmu Ternak dan Veteriner Vol 3, No 2 (1998)
Publisher : Indonesian Center for Animal Research and Development (ICARD)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (493.391 KB) | DOI: 10.14334/jitv.v3i2.101

Abstract

An experiment was conducted to determine the availability of P in defluorinated rock phosphate (DRP) and bone meal (TT) using a slope ratio assay (SRA) technique . Ten different diets were fed to 300 day-old broiler chicks for three weeks. Basal diet (RB) was formulated to contain 0.38% total P. DRP, TT and dicalcium phosphate (DCP) diets were each containing three different levels of total P: 0.45, 0.52 and 0.59%: At the end of the experiment, tibia bones were collected for ash determination. The availability of P was determined by SRA using tibia bone ash as the main parameter. The result indicated that the availability ofP in the DRP and TT were 83 .6 and 91 .3%, respectively .   Key words : Phosphorus availability, slope ratio assay, broiler
Co-Authors A Habiebie A.P Sinurat D Aritondang M Silalahi P.P Ketaren R Dharsana T Pasaribu